Cervical has multiple meanings in the human body. The word cervix is derived from the Latin root word cervix which means neck. For this reason, the word cervical pertains to many areas where tissues narrow to a neck-like passage, and not only in your neck.
Cay /cay/ [1 syll.] as a name for girls is of Greek derivation, and Cay means pure. Cay is a variant transcription of Catherine (Greek): from katharos. Cay is also a derivative of Katherine (Greek).
a landing place, especially one of solid masonry, constructed along the edge of a body of water; wharf. 1690-1700; spelling variant (after French quai) of earlier kay (also key, whence the modern pronunciation) < Old French kay, cay; akin to Spanish cayo shoal. cay, key, quay.